born artificially, she was once called Subject 1912. created by the scientists who are working for the hunters, genetically infused with wolf dna to make a perfect hybrid hunters for the humans to use against the wolves. one of the experiments was subject 1912, she was raised by the scientists and checks her from time to time to see if there is any resemblances towards wolves. however, she has a rare case of hypersensitive sense of smell, at a young age she always scrunched her nose when she interacts with other hybrids like her, sometimes she always got irritated because of it but she managed control it. but when the underboss of qinxiang went inside the laboratory, he saw the little 1912 smelling on the toys she was playing, he became very intrigued about how she's doing before he decided to adopt her.

Seulgi learned well of the lessons that her father had taught her, to be a hunter, must know that her job is not to kill but to protect, to honor those who have fallen to protect, to inspire the younger ones to respect the opposing sides, and to fight for the better future of their home. however, the virtues of her father doesn't apply in the real time events, hunters killing wolves, wolves killing hunters, she couldn't stopped it and killed the wolves instead with her own hands. however, all of those she killed didn't left behind on the ground, instead seulgi gave slain wolves proper burials for them and meditates in front of their grave as a way to apologized. her colleagues didn't know how she respects wolves as she respects them, she only tells her father about it, just a little secret between them. not long after, at the age of 24, her father got sick and his life slowly deteriorate, he told her that the lessons he told her is for her to make a way of her own, also passing his will to Seulgi. eventually, the hybrid became the underboss of qinxiang. the city is field with crimes that the former underboss failed to diminish, now seulgi added more authorities to take actions against crimes as well as training more hunters to their cause.